Definitions for nucleus
  • Nucleus (n.) - A kernel; hence, a central mass or point about which matter is gathered, or to which accretion is made; the central or material portion; -- used both literally and figuratively.
  • Nucleus (n.) - The body or the head of a comet.
  • Nucleus (n.) - An incipient ovule of soft cellular tissue.
  • Nucleus (n.) - A whole seed, as contained within the seed coats.
  • Nucleus (n.) - A body, usually spheroidal, in a cell or a protozoan, distinguished from the surrounding protoplasm by a difference in refrangibility and in behavior towards chemical reagents. It is more or less protoplasmic, and consists of a clear fluid (achromatin) through which extends a network of fibers (chromatin) in which may be suspended a second rounded body, the nucleolus (see Nucleoplasm). See Cell division, under Division.
  • Nucleus (n.) - The tip, or earliest part, of a univalve or bivalve shell.
  • Nucleus (n.) - The central part around which additional growths are added, as of an operculum.
  • Nucleus (n.) - A visceral mass, containing the stomach and other organs, in Tunicata and some mollusks.
  • Nucleuses (pl. ) - of Nucleus
Words in your word
2 Letter Words
el en es ne nu un us
3 Letter Words
cel cue ecu els ens les leu nus sec sel sen sue sun ulu uns use